| Question |
 |
|
| Answer |
|
|
| physics |
the scientific study of the interaction of matter and energy |
| force |
any push or pull on an object |
| Newton |
the standard international unit as a measure of force |
| gravity |
the force that pulls objects toward each other(ex: Earth's gravity pulls objects to the ground.) |
| matter |
anything that has mass and takes up space |
| mass |
the amount of matter in an object |
| weight |
a measure of the force of gravity on an object |
| motion |
the process of changing position or place relative to another object (movement) |
| inertia |
an object at rest tends to stay at rest; an object in motion tends to stay in motion |
| balanced |
When opposite forces on an object are equal, the forces are ___________ |
| unbalanced |
When forces acting on an object are uneven they are ______________. |
| Balanced forces result in _____________. |
no motion |
| Unbalanced forces result in ____________. |
motion |
| An object is in motion when its distance from another object (the reference point) is ___________. |
changing |
| reference point |
A place or object used for comparison to determine if something is in motion. |
| The basic SI unit of length is the _______. |
meter |
| There are ________ centimeters in a meter. |
100 |
| speed |
the distance an object travels in one unit of time, such as miles per hour |
| Calculate speed by dividing ___________ by ____________ |
distance; time |
| velocity |
speed in a given direction; such as 25 km/h eastward |
| The vertical line (up and down) on a graph is the _______ axis. |
y |
| The horizontal (side to side) line on a graph is the ________ axis. |
x |
| On a graph showing motion, the y axis represents ___________. |
distance |
| On a graph showing motion, the x axis represents ____ |
time |
| On a graph showing motion, a flat line means ______ motion |
no
[See textbook p. 94] |
| net force |
the overall force acting on an object |
| Force is measured by a ___________. |
spring scale |
| friction |
friction is the force that one substance exerts on another when the two rub against each other. |
Science Vocab 147928
